Module schema_cache 

Schema caching. Schema caching for JSON to HEDL conversion

When converting large JSON arrays to matrix lists, we often encounter the same structure repeatedly. Caching the inferred schema significantly improves performance by avoiding redundant key iteration and sorting.

Performance Impact

• First schema inference: ~O(n*log(n)) where n is number of keys
• Cached lookup: ~O(1) hash map lookup
• Expected speedup: 30-50% for documents with repeated array structures

Thread Safety

The cache is thread-safe using interior mutability with RwLock. Multiple threads can read from the cache concurrently, while writes are exclusive.

Structs

CacheStatistics

Statistics for cache performance monitoring

SchemaCache

Thread-safe LRU schema cache

SchemaCacheKey

Cache key for schema lookup